Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques (hierarchy name)
4. [processes and techniques by specific type]
5. [object-making processes and techniques]
6. rapid prototyping

Anotations

Scope note:

Type of rapid prototyping whereby filaments of heated thermoplastic are gradually extruded onto a platform, creating cross-sections of an object and eventually creating a 3-D object prototype out of plastic.